Signal Too High

Signal too high

Checking the cable
If the fault is intermittent, it has been registered previously but is no longer present. Intermittent faults can be caused by interference at start up of the central electronic module (CEM) or may be a different type of fault which occurs on different occasions. The fault is evaluated depending on how it occurs.

Checking the cable and relay
Check the cable between the central electronic module (CEM) and the auxiliary lamps relay (2/64). Check for a short-circuit to supply voltage.
Take readings between:
- Central electronic module (CEM) #C9 (#9) and relay, auxiliary lamps, (2/64) #1.
If no fault is found in the signal cable try replacing relay 2/64.
For further information about the fuses and relays, see the Wiring Diagram.
Remedy as necessary.

Other information
- Connecting the breakout box Connecting the Breakout Box, Central Electronic Module (CEM)
- Signal specification Signal Specification
- Location of components Component Location, Central Electronic Module (CEM)
- Checking wiring and terminals Checking Wiring and Terminals

Continue - Verification

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Verification

Hint: After carrying out the repair check that the fault has been remedied.








- Ignition off.
- Reinstall the connectors, components etc.
- Ignition on.
Activate the auxiliary lamp.

Do the auxiliary lamps work?

Yes - Troubleshooting procedure complete

No - Information

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Information

Fault-tracing information
The fault should have been detected and remedied. As this is not the case fault-tracing has failed.
Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

Do you want to exit fault-tracing?

Yes - Exit Fault-tracing

No - Attempt New Test

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Attempt New Test - Checking the cable

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